流体机械2025，Vol.53Issue(11)：68-74,7.DOI:10.3969/j.issn.1005-0329.2025.11.009
超临界天然气印刷板式冷却器性能仿真分析
Simulation analysis of the performance of supercritical natural gas in printed circuit heat exchanger
摘要
Abstract
To address the challenge of the unclear coupling mechanism between cross-flow and counter-flow heat transfer in printed circuit heat exchanger(PCHE)operation,a key issue hindering equipment design,a numerical model was developed to simulate conjugate flow and heat transfer processes within PCHEs.The SLENDER BLOCK+structured meshing method was introduced for discretizing the PCHE core,enabling quality mesh generation and numerical simulation for industrial-scale units.The industrialized test data were used to verify the model's accuracy.The error in heat transfer load was less than 10%,and the pressure drop error was less than 5%.The results revealed two critical phenomena:Significant natural gas channel temperature non-uniformity,characterized by an enhanced heat transfer zone near the seawater inlet and an impaired zone near the outlet;a calculated overdesign margin of 40.5%,indicating considerable potential for flow-path optimization.This method establishes a robust framework for PCHE performance prediction and engineered optimization design in domestic engineering applications.关键词
印刷板式换热器/结构化网格/数值模拟/换热器/工业化测试Key words
printed circuit heat exchanger(PCHE)/structured mesh/numerical simulation/heat exchanger/industrial testing分类
机械制造引用本文复制引用
MI Xiaoguang,LEI Rui,ZHANG Xiaohui,HE Jiaxin,SUN Guogang,HU Haitao..超临界天然气印刷板式冷却器性能仿真分析[J].流体机械,2025,53(11):68-74,7.基金项目
上海市自然科学基金项目(23ZR1478900) （23ZR1478900）
上海市扬帆计划项目(22YF1459700) （22YF1459700）
